Not much modding here. Mostly tried to adapt to the case geometry and only a few cut out done for wiring and water tubes pass through. Also plastic top completely removed.
Main building structure are from the Mechanical base plastic model from a Chinese web site. Then painted using pain pens.
Robots uses are Gundam Unicorn and Gundam Astray Red Frame.
The water cooling parts are the most time consuming task of my build because this is my first time to water cooling. So a lot of learning, try out and planning have been done.

Time Spent:

6 months total.
Sourcing for parts took over 3 months.
Built using my free time after work and a few hours during weekends.

My very first custom mod build!
A diorama of Gundam robots under maintenance in a hangar.
The hangar feature 3 levels which the ground level is the power rig and the 2 other upper levels are the working bays. Rooftop level is the building ventilation and helipad.